Schneider TAC Xenta 412 Relay output module

The TAC Xenta 412 is a high-performance, programmable controller designed for heating and ventilation applications. As part of the Xenta family by Schneider Electric, it is a LonWorks-certified device that offers seamless integration into Building Management Systems (BMS).

### Key Product Specifications

The Xenta 412 is known for its versatility in handling universal inputs and digital outputs.

### Product Advantages

• Scalability: Can be used as a standalone controller or integrated into a larger LonWorks network.

• Flexibility: The universal inputs allow for a mix of sensors (temperature, pressure, etc.) without needing different hardware modules.

• Easy Programming: Utilizes TAC Menta, a graphical programming tool that simplifies complex logic creation.

• Cost-Effective: Its compact design saves space in electrical panels, reducing installation costs.

• LonMark Certified: Ensures interoperability with third-party devices on the same LonWorks network.

### Product Applications

The Xenta 412 is primarily used in small to medium-sized HVAC systems:

• Air Handling Units (AHUs): Controlling fans, dampers, and temperature loops.

• Boiler Plants: Monitoring supply/return temperatures and pump sequencing.

• Heat Exchangers: Regulating valves to maintain specific setpoints.

• Zone Control: Managing heating and cooling for specific areas within a commercial building.

### Important Considerations (Precautions)

1. Wiring Safety: Always ensure the power supply is disconnected before installation to prevent electrical shock or damage to the electronics.

2. Polarity: While AC power is flexible, ensure correct polarity if using DC power to avoid logic errors or hardware failure.

3. LonWorks Termination: Ensure the network is correctly terminated with a physical terminator to prevent communication echoes and data loss.

4. Environmental Limits: Do not install the unit in environments with high humidity (condensing) or extreme vibration, as this can degrade the internal relays.

5. Firmware Compatibility: When adding to an existing system, verify that the firmware version is compatible with your current TAC Vista or EcoStruxure software.

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